The outlook client is part of MS Office. You can use the version 2007 or 2010 without problems. But old version like 2003 you enable the cryptography in Account configuration > Advanced button > Security Tab > Check "Cryptography Data between Exchange Server and outlook".

It is not recommended both on the same Server as both require heavy resources of the Server but even after you want to deploy your disaster recovery must be powerful and very fast in case of any critical issue/hard drive crash you should be able to recover your data without any loss.

But be remember in today's world, email is perhaps the most important communications tool in business even a loss of single mail can be ruin a user business.

Both Exchange 2010 and SQL 2005 can be very I/O demanding. That's not to say in your environment they will be. It really just depends. You need to download some Exhcange and SQL sizing calculators to get some good numbers and match it up with what your hardware can sustain.

If by 500GB you mean you have a single 500GB drive it's going to be misserable. Not because your server won't boot or Windows won't run. The end user experience will be terrible as people wait for Outlook to respond., etc., etc.

I have a Windows 2008 Server running SQL Server 2005 and Exchange 2007. The main issue I have faced is that when the server is restarted the Exchange Mail Submissions and Transport services do not automatically start.

The only thing I can put this down to is the server being to busy trying to start SQL and othre Exchange services.

When I logon to the server I can start the services and everything works well together.

Is your marketing department constantly asking for new email signature updates? Are they requesting a different design for every department? Do they need yet another banner added? Don’t let it get you down! There is an easy way to manage all of these requests...

Yes, you can use outlook 2003 with exchange 2010. Read the post, my english is so so. I use more French. For information the Windows 2008 SBS comes with SQL server 2008, Exchange 2007, SQL Server 2008. Microsoft says until 75 uses. The exchange 2010 requirements are similar to 2007.

Microsoft only recomends if you are using SBS editions 'Is this estrenger, is not?' ;)

well....I just ordered another server...with 10gb of RAM....so I will cross connect the two so that the exchange will be able to send data to the ms sql server 2005...i will keep exchange on one...and sql server on the other....

one more thing on the exchange server I want to put my own email program that I wrote on there...is that a problem? can I have exchange and my email server on the same box??

I have had no performance issues with the server/. It is a Dell R710 Quad CPU with 6 disks and 8GB RAM.
We have about 100 mailboxes and approximately30 users that would acitvely connect to the SQL server.

No. The sticking point is with SMTP (TCP Port 25), you can't have seperate mail server applications listening on the same port. To run them together you will need to modify the mail server program you wrote to listen on TCP port 26 or you can modify the Exchange virtual SMTP server to listen on TCP port 26.

Local Continuous Replication is a cost effective and quick way of backing up Exchange server data. The following article describes the steps required to configure Local Continuous Replication. Also, the article tells you how to restore from a backup…

This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory.
NOTE: For Outlook 2016 and 2013 perform the exact same steps.
Open a new email: Click the New email button in Outlook.
Start typing the address: …